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24 Cards in this Set
- Front
- Back
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Oblate spheroid
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a slightly flattened sphere
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Axis
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an imaginary straight line that goes through the earth from the North Pole to the South Pole
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Seismic waves
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vibrations the travel through the earth
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Crust
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The thin, solid outermost zone of the earth
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Mantle
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a zone of rock below the earth's crust
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Core
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the center of the earth
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Moho
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The boundry between the earth's mantle and crust
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Shadow Zone
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the location on the earth's surface where no siesmic waves of only P waves can be found
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Magnetosphere
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the region of space that is affected by the earth's magnetic field
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Gravity
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the force of attraction that exists between all matter in the universe
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Law of gravitation
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the force of attraction between any two objects depends on their masses and the distance between them
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Weight
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a measure of the strength of the pull of gravity on any object
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Newtons
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the mesurment that wieght is mesured in
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oceanic crust
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the crust beneth the oceans
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Continental Crust
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the part of the crust that the continents are on
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Lithosphere
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The solid part of the mantle and the crust above it
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Asthenosphere
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The region just below the lithosphere in the mantle
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Plasticity
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the ability for a solid to flow
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Equator
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an imaginary line that divides the earth into the Northern and Southern Hemesphere
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Mass
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the amount of matter in an object
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P waves
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Primary waves
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S waves
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Secondary waves
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Hydrosphere
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All of earths waters
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Atmosphere
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The blanket of gases the earth is surrounded by
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